1. P.A. Miller, PT, PhD, is Associate Clinical Professor, School of Rehabilitation Science, McMaster University, IAHS Room 403, 1400 Main St West, Hamilton, Ontario, Canada, L8S 1C7, and currently holds the Raymond and Margaret Labarge Post-doctoral Fellowship for Research and Knowledge Application for Optimal Aging, School of Social Work, McMaster University.
2. M. Nayer, PT, PhD, is Lecturer, Department of Physical Therapy, University of Toronto, Toronto, Ontario, Canada. At the time this work was completed, she was Director, Quality Management, College of Physiotherapists of Ontario, Toronto, Ontario, Canada.
3. K.W. Eva, PhD, is Associate Professor, Department of Clinical Epidemiology and Biostatistics, McMaster University.